Question details

Backup FCI CI820 not operational

Hi,

We at our site have CI820 FCIs installed in redundant configuration on all stations.

At one station the backup FCI run LED is not on. Power and T1 & T2 leds are okay. Also Fault LED is off. We have tried replacing the module with new and also tried swapping it with another station's backup module. Neither of the two actions has resolved the problem and the healthy station from which we removed back up module now also has the same issue...

No I haven't. I was thinking of doing this as i found this written in the user manual but didnt proceed as the manual didnt tell if this can be done while the module is mounted in its location and connected to the AF100 bus and the interconnecting module.
I was unsure of what impact this might have on the currently operational "running" primary FCI CI820 module.